Structural Framing Strength?

[VladimirM]

Hello Chief Delphi forum,

My rookie team, Team 5631, was looking at purchasing aluminium structural framing to make up the main frame of our robot. We came upon this website to purchase the framing from.

I had looked at buying 12000mm of 40x40 t-slot framing. It is rather expensive, and as a rookie team we are on a tighter budget then some of the more senior teams. That being said, could anyone give me some insight if 40x40 will be ample strength? Should we move down in size, and save in costs to the 30x30, or should we consider moving up to the more expensive 45x45? Even 50x50?

Thanks in advance for any responses,

Vladimir Milicevic
Team 5631 Robot Captain